disappearern.
/ˌdɪsəˈpɪərə/, U.S. /ˌdɪsəˈpɪrər/ A person who or thing which disappears or vanishes.
ΘΚΠ
the world > physical sensation > sight and vision > invisibility > [noun] > vanishing or disappearing > thing or person
vanisher1864
disappearer1868
1868 Hampshire Tel. & Sussex Chron. 15 Aug. 1/1 (advt.) The Disappearer's Story.
1882 N.Y. Tribune 14 June Prickly comfrey, which..was going to do such great things for our agriculture, seems to have joined the mysterious disappearers.
1916 Shoe & Leather Reporter 8 June 22/1 Glucose has the original Charlie Ross beaten to a frazzle as a mysterious disappearer.
2011 C. Gill Eating Dirt (2012) vi. 135 Cougars are excellent predators. They're also expert disappearers.
This entry has been updated (OED Third Edition, September 2017; most recently modified version published online March 2022).
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n.1868